.control{
    position: absolute;
    font-size: 1rem;
    line-height: 3rem;
    height: 3rem;
    max-height: 3rem;
    display: inline-block;
    pointer-events: auto;
    border-radius: 0.25rem;
    background: rgba(0, 0, 0, .5);
    text-align: center;
    left: 40%;
    color: #fff;
    top: 2rem;
    cursor: pointer;
}

.btn{
  min-width: 8rem;
  display: inline-block;
  color: #9a9a9a;
  cursor: pointer;
}
.btn-active {
  color: #fff;
  background-image: linear-gradient(0deg,rgba(34,34,34,.8),rgba(6,4,4,.9));
}